Monitoring and Evaluation of Environmental Quality of the Waters near the Oujiang River Estuary in Wenzou

• 作者: Lin Bo Qian Jian Yao Dongping Ye Xinrong Zhang Haifeng Zheng Fangqin
• 来源期刊: 气象与环境研究:英文版
• 学科: 地球科学
• 关键词: WATERS NEAR the Oujiang River ESTUARY Evaluation of environmental QUALITY Characteristics of water QUALITY EUTROPHICATION
• 年，卷（期）: 2019,（5）
• 页码范围: 74-80
• 页数: 7页
• 分类号: P

摘要

Based on the monitoring results of environmental quality of the waters near the Oujiang River estuary from 2010 to 2017,the present situation of environmental quality of the waters was analyzed and evaluated.The results showed that pH,DO,COD Mn ,petroleum,and heavy metal (Cu,Pb,Zn,Cd,Hg,As and Cr) content in the waters near the Oujiang River estuary did not exceed the second-class standard of Seawater Quality Standard (GB 3097-1997),while both inorganic nitrogen and reactive phosphate in the waters greatly exceeded the second-class standard.The water quality near the Oujiang River estuary was in an eutrophic state.In terms of sediment quality,the standard index of most evaluation factors except for Cu was smaller than 1,meeting the demands of sediment quality for environmental protection.